Wrench



(No Model.) K A N. ECOLES. WRENCH.

No. 510,414. Patented Deo. 12,1893.

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UNITED STATES PATENT OFFICE.

NICHOLAS ECOLES, OF AUBURN, NEW YORK.

l WRENCH.

SPECIFICATION forming partof Letters Patent No. 510,414, dated December 12, 1893.

Application led September 28, 1893. SerialNo.486|679. (No model.)

To all whom it may concern:

Be it known that I, NICHOLAS ECOLES, a citizen of the United States, residing at Auburn, in the county of Cayuga and State of New York, have invented certain new and useful Improvements in Wrenches, of which the following is a specification, reference being had therein to the accompanying draw ings.

My invention relates to wrencheshaving sliding jaws; and the objects of my improvement are to construct a wr'ench of this class which will have the elements of simplicity and great strength, and will also be relatively inexpensive. I attain these objects by the construction illustrated in the accompanying drawings in which Figure l is a perspective view of a wrench constructed in accordance with my invention, the jaws appearing therein about half opened. Fig. 2 is a perspective view showing the inner side of one of the concaved side plates of the jaw-carrying frame. Fig. 3 is a front view of the inner side of the frame on a slightly larger scale. Fig. 4 is a perspective view of one of the jaws. Fig. 5 is alongitudinal section through the jaw-operating pin, and the buttons or heads thereon by which it is moved lengthwise of the slots in the side plates of frame and lengthwise of the stem of each jaw.

In said drawings A A represent the side plates of the frame. Said plates have iianges a2 to form, when their edges are brought in contact with each other, a chamber a8 to receive in its upper end the jaws B B of the wrench. The lower portions of the side plates are suitably curved and their edges rounded to constitute a suitable handle for the wrench. The upper edges of* of each plate A have not any ange but form with each other an angle of ninety degrees, andf said edges a4 constitute strong bearing surfaces for the shoulders b b2 formed on the under side of each jaw, on the sides of its stem b3. Said bearing surfaces a4 are also used as guides for the jaws adjacent to their points of junction with the stem h3; but to guide the outer end of said stem in a direction parallel with one of the edges a4, at right angles to the other edge a4 of each plate A, said stem b3 has a groove b4 transversely thereof and adjacent to saidouter end. Said groove b4 is made to engage with a rectangular rib a5 projecting from the inner face of each plate A, and said rib is located parallel with one of the edges a4.

To permit a person using the wrench, to bring the two jaws simultaneously toward each other, or away from each other, as may be desired, the stem of each jaw has a slot b5 lengthwise thereof in a position parallel with its edges. Each plate A has also a slot 0.6 through its side, in the axis thereof; saidslot `0,6 being formed at an angle of forty-live degrees with either one of the edges 0,4. When the jaws have been placed in proper position with the iiat faces of their stems in contact with each other, a pin d is made to pass through the slots a of the frame, and through the slots b5 of the stems of the jaws to move the latter. Said pin d is provided with heads d2 preferably in the form of disks concaved on their outer faces to serve as handles in moving the pin d up or down in the slots made for its reception. Said heads d2 are either screwed upon or riveted on the ends of the pin d after it has been received in the slots.

The two plates A are united together by rivets or screws c passing through them and in engagement ktherewith at suitable points upon the hand portion thereof.

The jaws of this wrench are capable of resisting great pressure as their shoulders b b2 constantly bear upon the edges a4 of the frame.

Said wrench is of verysimple construction. Each plate A is identical in form to the other, and the castings thereof can be molded from the same pattern; each jaw is also identical in form to that of its mate. The shoulder b thereon is narrower than the shoulder b2 to permit the stem of another jaw to be placed alongside of the stem of the rst, and have esizdes a shoulder equal in width to the shoul- Although in the twointerlocking members b4 and a5, I vprefer to have the groove b4in the stem of the jaw and the rib a5 on the plate of the frame, it is evident that the arrangement may be inverse, by providing the side of the jaw stern with a rib in the same position as roo the groove b4 and the frame with a groove in place of the rib a5, without departing from the spirit of my invention.

Having now fully described my invention, I claiml. In a wrench the combination of two chainbered plates, each having two edges a4 inclined at an angle of ninety degrees to each other, a rib parallel with one of said edges, and a slot midway of said edges, with two jaws, each provided with a stem having a groove transversely thereof and a slot parallel with its edges, and a pin passing through said slots and through the slots of the plates of the frame substantially as described.

2. In a wrench the combination of the frame consisting of two Aehambered plates having edges inclined at an angle of ninety degrees to each other, and aslot midway of said edges, two jaws, each provided with a stem having a slot parallel with its edges, and interlocking members as described uniting said stems with the plates of the frame and a pin passing through the slots of said plates and `'through the slots in the stems of the jaws substantially as described.

In testimony whereof I ax my signature in presence of two witnesses.

NICHOLAS ECOLES. Witnesses:

JNO. VAN SEICKLE, ARTHUR E. BLAUvELr. 

